/*
 * Portions Copyright (c) 2009-10 Zepheira LLC, Some Rights Reserved
 * Portions Copyright (c) 2010-11 Talis Inc, Some Rights Reserved
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */
package org.callimachusproject.engine.helpers;

import org.callimachusproject.engine.model.Var;

/**
 * Flags a variable as not being used in a join.
 * 
 * @author James Leigh
 *
 */
public class BlankOrLiteralVar extends Var {
	private String name;

	public BlankOrLiteralVar(String name) {
		this.name = name;
	}

	@Override
	public String prefix() {
		return "?";
	}

	@Override
	public String stringValue() {
		return name;
	}

}
